Korean: 3,4-메틸렌다이옥시페놀 · CAS 533-31-3 · Functions: hair dyeing
Prohibited MFDS prohibited ingredients
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 16, 2026
Prohibited Annex II/1247
Source: EU CosIng — Annex II · checked Oct 16, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How 3,4-Methylenedioxyphenol is treated in 5 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.
| Market | Status | Conditions |
|---|---|---|
| CN China | Prohibited | — |
| AS ASEAN (10 countries) | Prohibited | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
| TW Taiwan | Prohibited | — |
| BR Brazil | Prohibited | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
| AR Argentina | Prohibited | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 16, 2026
3,4-METHYLENEDIOXYPHENOL 3,4-메틸렌다이옥시페놀
Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.
In the EU's CosIng records it is listed as “Prohibited” (EU CosIng — Annex II).
In Korea's MFDS records it is listed as “Prohibited” (MFDS — cosmetic ingredient use restrictions).
We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.
The EU's CosIng inventory lists its functions as: hair dyeing.
Korea's MFDS standard Korean name is 3,4-메틸렌다이옥시페놀.
CAS 533-31-3 (from official records).